The control of sewage in water in electroplating and galvanoplastic implies a costly cleansing process and the use of chemical products.
This work tries to explain different processes to re-use rinsing water in the whole process of surface treatment, like anodizing, zinc-plating, nickel-plating, gold-plating, electroforming, phosphating, etc.
1. Quality control of the washing water for quantity of the water.
2. Systems for voluntary and involuntary wastage of water and the process for re-use it. Wastage can be due to evaporation, seepage, filtration, decantation, oozes, additional washing.
3. Systems for washing racionalization to reduce consumption and contamination.
4. Recovering and recycling processes by electrolysis, electrodialysis, electro-electrodialysis, inverted osmosis, ultrafiltration, evaporation, ionic interchange.
5. Baths regeneration through crystalization oxidizing, incineration, liquid interchange, liquid
